Design Helix Antenna by using HFSS

ABSTRACT

the  aim of this  paper  is  to providing actually a current  of implicit   wireless displacement sensor. The  sensor  consist of outside  helix antenna and an inside aluminum oxide strip (AOS) material. Agreement with the perturbation theory,  which there is  an imprecise  linear relation ship between the  transfer  of AOS material in the  hollow of the  helix antenna  & resonant frequency  of the  last. Owing to the  configuration   of  the  sensor. In this  paper, at  first  designed the  configuration  by using MATLAB software  program just  only the  helix  antenna, then adding  the AOS material strip to the  helix antenna.  Second step is to study the  numerical analysis and   mythology measurable  factor  forming, the  both last are  conveyed  through high frequency structure  simulator (HFSS)  of the helix  antenna without  the  material AOS, at last step we adding  the AOS to the  helix antenna. Then design areal helix antenna by using copper material.  The evaluation result  achieved that the  sensor of the determined  range  has  good linearity  and sensitivity.